html,body,#app {
    height: 100%;
}
.el-header, .el-footer {
    background-color: #B3C0D1;
    color: #333;
    text-align: center;
    line-height: 60px;
}
.el-main {
    background-color: #E9EEF3;
    color: #333;
    text-align: center;
    line-height: 70px;
}
#maintry_addStudentScore, #maintry_delteStudentScore, #maintry_updateStudentScore, #maintry_findStudentScore {
    position: relative;
    display: block;
    left: 400px;
    width: 50%;
    height: 50px;
    font-size: 20px;
    color: darksalmon;
    background-color: #fff;
}

